3.B – Display

We have the lenses on, but without a display, they are no good. Place the screen onto opening right in front of the lenses. I’m assuming you have the LVDS cable connected between the Screen and the Driver board.

Be very careful with the LVDS cable. They are pretty fragile and you wouldn’t want to wait for another shipment for weeks.

Place the LCDPlace_1 onto back of the screen. This part will act as a separator between the screen and the driver board. Secure this part onto the screen using hot glue or tape.

I would suggest taping some bubble nylon onto this separator to increase heat insulation between driver board and screen. Because driver board gets very hot and you don’t want to damage the screen.

Then we need to place the driver board on the outside. Tape may not work for securing board because after several minutes of operation, heat from board loosens the tape. So you should probably use hot glue.

3.C – Display Test

Since we have both optics and display ready in place. We better test everything before taking further steps.

Now you should be able to watch a stereoscopic video using your OpenVR.

I am running the same code as the example from the folder and this happens:

Final_arduino_code.ino: In function ‘void read_sensors()':
Final_arduino_code:427: error: ‘Read_Gyro’ was not declared in this scope
Final_arduino_code:428: error: ‘Read_Accel’ was not declared in this scope
Final_arduino_code:429: error: ‘Read_Magn’ was not declared in this scope
Final_arduino_code.ino: In function ‘void reset_sensor_fusion()':
Final_arduino_code:450: error: ‘Vector_Cross_Product’ was not declared in this scope
Final_arduino_code:458: error: ‘Compass_Heading’ was not declared in this scope
Final_arduino_code:462: error: ‘init_rotation_matrix’ was not declared in this scope
Final_arduino_code.ino: In function ‘void compensate_sensor_errors()':
Final_arduino_code:476: error: ‘Matrix_Vector_Multiply’ was not declared in this scope
Final_arduino_code.ino: In function ‘void setup()':
Final_arduino_code:541: error: ‘I2C_Init’ was not declared in this scope
Final_arduino_code:542: error: ‘Accel_Init’ was not declared in this scope
Final_arduino_code:543: error: ‘Magn_Init’ was not declared in this scope
Final_arduino_code:544: error: ‘Gyro_Init’ was not declared in this scope
Final_arduino_code.ino: In function ‘void loop()':
Final_arduino_code:675: error: ‘output_calibration’ was not declared in this scope
Final_arduino_code:683: error: ‘Compass_Heading’ was not declared in this scope
Final_arduino_code:684: error: ‘Matrix_update’ was not declared in this scope
Final_arduino_code:685: error: ‘Normalize’ was not declared in this scope
Final_arduino_code:686: error: ‘Drift_correction’ was not declared in this scope
Final_arduino_code:687: error: ‘Euler_angles’ was not declared in this scope
Final_arduino_code:689: error: ‘output_angles’ was not declared in this scope
Final_arduino_code:693: error: ‘output_sensors’ was not declared in this scope

I can’t get it to work, these errors normally appear because of a missing library, I already tried to include the .ino in the rest of the folders, didn’t worked, created a .h to each of the .ino files and renamed the ino to cpp and didn’t work, I don’t know how to get rid of this problem, please help me.

do you think it would be possible to replace the suggested lenses with prescription ones, or instead of that, making it so i can wear glasses while using it, and if so, what would be the best way to do that?

Great job with this one! and thanks for posting all your hard work Ive followed along and built my own VR headset. I am so close the having it all finished, I am just having one little issue with drift on the head tracking. I have it set to adjust for drift based on the magnetometer but it seems to have no affect. I even tried putting a magnet close to it to try and mess with the reading but it had no affect, so it seems like it isn’t doing anything with the magnetic field data. any idea what i may be doing wrong? plus I know from calibration that there is stable data coming from all three sensors.

I’ve narrowed down the source of the issue to a problem with the accel z axis, It almost always reads out a value of 511 but when i flip the board over it will drop to a min of 422. When i use these in the calibration info I can at least get the values to settle and stop drifting when the board is still, but now its movement is really out of waco.

Hey man great diy project I was also thinking to make one for myself, totaly a nice piece of artwork but more importantly inspration.

I have a question, I am not efficient on IMU Sensors. We are picking a IMU sensor 9 DOF or more and we are matching it with the Camera Class of whatever we wanna go in but is it only rotational or if I actually walk forward in a empty room will it catch me moving and process that,

Hi. I’m creating an “oculus style” diy and want to use your solution for head tracking. I’ve upload the arduino final code to my arduino pro mini but when i try to run the razor ahrs test (in processing 2) I got some error and the program stop to run. I’ve try freepie with mouse emulation script also and seems don’t fetch anything from the gy-85
Perhaps I’ve for got something (the port and speed is ok)

I am very thrilled to do this so I bought the sensor and Arduino.I am not an expert so I am stuck .Could you please explain how to connect the USB to TTL converter and what kind of jumper wires should I buy(female..male).Are there any different types of usb-ttl converter(Anxious about any compatible issues!)I will use an android smartphone as a display by mirroring the pc monitor.